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Leandro Oliveira

@leandrooliveira1

I build scalable backend integrations, asynchronous event platforms, and cloud services with Node.js, TypeScript, AWS, and PostgreSQL.

Brazil

Message

At Leve Saúde, I built an integration platform connecting internal financial systems to payment gateways and created an asynchronous event platform monitoring more than 470,000 events monthly across five internal systems.

Previously at Universidade FUMEC, I evolved academic and financial systems, built institutional-app and mental healthcare scheduling backends, and contributed to an award-recognized partnership combating gambling addiction.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Leve Saúde

Dec 2024 - Present (1 year 9 months)

Defined technical architecture and implemented an integration platform connecting internal financial systems with payment gateways. Developed a platform for monitoring, tracing, and reprocessing asynchronous events, and designed a medical interview platform with backend modeling for scheduling and queue-based workflows.

NodeJS TypeScript AWS Serverless Framework Amazon EventBridge DynamoDB S3 Jest Azure DevOps GitHub Sentry

Software Engineer

Universidade FUMEC

Dec 2022 - Dec 2024 (2 years)

Evolved the university's academic and financial system, including feature development, bug fixing, and Oracle database maintenance. Developed the backend for the university's institutional application and designed the technical solution for a mental healthcare appointment scheduling platform.

Java NodeJS Docker PostgreSQL Oracle Database Git Gitlab Oracle Cloud